Experimente estes comandos:
sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get build-dep ubuntu-desktop
Isso deve reinstalar a área de trabalho do Ubuntu e construir as dependências.
Espero que isso ajude.
Estou executando o Ubuntu 13.04. Depois de executar uma atualização normal, o Unity desapareceu (após o login, eu tenho a área de trabalho, sem a barra de status abd lançamento, sem traço, etc.).
Se eu tentar reinstalar o ubuntu-desktop, recebo dependências não atendidas:
vmalep@x220t:/mnt/sda2/home/vmalep$ sudo apt-get install
ubuntu-desktop Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies.
ubuntu-desktop : Depends: unity but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
Unity é um pouco mais explícito:
vmalep@x220t:/mnt/sda2/home/vmalep$ sudo apt-get install unity
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies.
unity : Depends: libunity-core-6.0-5 (= 7.0.0daily13.04.18~13.04-0ubuntu1) but it is not going to be installed
Depends: unity-common (= 7.0.0daily13.04.18~13.04-0ubuntu1) but 7.0.0daily13.05.16ubuntu.unity.experimental.certified-0ubuntu1 is to be installed
Recommends: gnome-control-center-unity but it is not going to be installed
Recommends: unity-lens-friends but it is not going to be installed
Recommends: unity-lens-shopping but it is not going to be installed
Recommends: indicator-bluetooth but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
Experimente estes comandos:
sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get build-dep ubuntu-desktop
Isso deve reinstalar a área de trabalho do Ubuntu e construir as dependências.
Espero que isso ajude.
Para instalar o unity, primeiro você precisa instalar todos os Recommends, um por um, usando o gerenciador de pacotes sypnatic. Na busca sypnatic do gerenciador de pacotes por gnome-control-center-unity, unidade-lens-friends e todas as outras recomendações. Depois de instalar todas as recomendações, tente instalar a unidade como antes, então a unidade será instalada.
A saída mostra que você tem um pacote mais recente do que o que o Unity depende:
unity : Depends: libunity-core-6.0-5 (= 7.0.0daily13.04.18~13.04-0ubuntu1)
É mais provavelmente causado por um ppa. Verifique o mais recente ppa que você adicionou e remova-o com o ppa-purge.
Tags unity dependencies updates 13.04